Screw-coupling.



Patented Nov. l2, I901. J. M. 60X.

SCREW COUPLING.

(Application filed A r; 2. 1901.)

(No Model.)

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UNITED j STATES P TENT OFFICE.

JAMES M. COX, OF NEW YORK, N. Y., ASSIGNOR TO UNITED STATES COUPLER AND MANUFACTURING COMPANY, OF EAST ORANGE, NEW JERSEY, A

CORPORATION OF NEW JERSEY.

SCREWO-COUPLING.

SPECIFICATION forming part of Letters Patent No. 686,388, dated November 12, 1901.

Application filed April 2, 1901. at; in. 54,032. on model.)

To ctZZ whom it may concern.-

Be it known that I, JAMES M. COX, a citizen of the United States, and a resident of New York city, county and State of New York,

have invented certain new and useful Improvements in Screw-Couplings, of which the following is a specification.

This invention relates to a screw-coupling of the class in which the nut or female memher is made expansible, so that a rapid union by an axial movement of the male member vention. Fig. 2 is a side elevation of the male member. Fig. 3 is a cross-section mainly on line 3 3, Fig. 1; Fig. 4, a longitudinal section of the coupling, showing it closed; Fig. 5, a section through the rim of the collar 0; Fig. 6, a side view of one of the nut-sections; Fig.

7, an end View thereof; and Fig. 8, an enlarged cross-section on line 8 8, Fig. 6.

The letters a and b representthe two members of a coupling to which the hose or the nozzle is adapted to be attached in suitable manner. The member a is provided with a rotatable collar 0, on the inner face of which are formed a number of radially-extending o chambers or recesses c, Fig. 3, separated by the radial partitions 0 The collar 0 incloses the expanding nut, which constitutes the female member of the coupling. This member is composed of a number of curved threaded sections (2, Fig.

6, each of which is provided with a radiallyextending flange cl, adapted to project partly into one of the recesses c, Fig. 3. The nutsections at are movable axially within the collar 0, but are by the engagement of the parts spring e, Fig. 8.

An in wardly-extending groove 0 at the base of collar 0 is adapted to receive the outwardly-projecting flanges d of the nut-sections (1 when the nut-sections are in their outermost position.

A band-spring f, slotted at f to clear the projections 01 and latches e, Fig. 7, surrounds the nut-sections d and tends to contract the same against the male member of the coupling. Normally the nut-sections d are set back from the outer edge of the collar 0, Fig. 1, so that the latches e engage the inner compartment 0 The male member I) of the coupling is provided with a screw b, adapted to be thrust axially into the expanding nut or female section. After a preliminary coupling has been effected by this longitudinal movement the collar 0 is rotated to screw the nut-sections d outward or toward the open end of collar 0. The force brought to bear upon the sections 01 will cause the spring-latches e to clear the beveled face of the rib c and to enterthe outer compartment 0 Fig. 4, while at the same time the flange (1 will be drawn into the groove 0 In this way the expansible nut is locked firmly to the male member of thecoupling and held against longitudinal and also against lateral displacementthat is, the latches e will prevent the female section from slipping axially 01f the male section, while the flanges (1 being heldin the groove c,will prevent the nut from yielding radially. The coupling is therefore so firmly looked that a parting, even under excessive strain, will be prevented.

In case the coupling is used to unite a hosesection to a nozzle the collar 0 need not be rotatable upon the member a,but may be fixed, mo

because in that case the entire member carrying the nozzle may be rotated.

Thoughthe invention has been shown to be embodied in a hose-coupling, it is evident that it may be applied to other implements and tools inwhich an expanding nut is employed.

What I claim is 1. In a screw-coupling, the combination of a collar having a pair of circumferential compartm-ents,witl1asectional nuthavinglatches adapted to engage either of said compartments, substantially as specified.

2. In a screw-coupling, the combination of a collar having a pair of circumferential compartments and an intermediate beveled rib, with a sectional nut having latches adapted to engage either of said compartments, substantiallyas specified.

3. In a screw-coupling, the combination of a collar having a pair of circumferential com-- JAMES M. 00X.

\Vitnesses:

WILLIAM SoHULz, F. v. BRIESEN. 

